Center of MassHard
Question
A mass of 0.2 kg moving with a speed of 2m/s strikes a horizontal spring and is brough to rest after compressing the spring by 2cm. If g = 10m/s2, then the spring constant should be :-
Options
A.2000 
B.20,000
C.1000
D.40,000
Solution
By conservation of mechanical energy
Create a free account to view solution
View Solution FreeMore Center of Mass Questions
A tube of length L is filled completely with an incompressible liquid of mass M and closed at both ends. The tube is the...The centre of mass of two masses m & m′ moves by a distance when mass m is moved by distance x and m′ is kep...A uniform sphere is placed on a smooth horizontal surface and a horizontal force F is applied on it at a distance h abov...Two bulbs B1 & B2 each having resistance 50Ω are connected according to the figure. Which bulb will glow with more ...A shell explodes in a region of negligible gravitational field, giving out n fragments of equal mass m. Then its total...